Designed and manufactured to stand up to heavy-duty use, Zero Tolerance Knives are built of premium materials and designed to provide the user with maximum strength, versatility, and unwavering reliability. All Zero Tolerance Knives are built with integrity to professional, hard-use specifications. They’re in demand by armed forces personnel, law enforcement officers and other first responders, as well as by discerning knife owners who simply want to be ready for anything the world might throw at them.